The study will begin simultaneously in all the centers, in September, at the beginning of the university year. When patients will be admitted in the ED for alcohol intoxication, they will first meet the entry nurse, who will make the orientation as usual. Participants will be marked as eligible for the study, and a breath test or a blood alcohol test will be performed. On the following morning, a psychologist will evaluate all potential patients, and check the inclusion criteria. In case of eligibility, the study procedure will be explained and the patient and a medical doctor present in the ED will sign an informed consent. The patient will be included and a baseline assessment will be performed using a web-based questionnaire implemented on a digital tablet. These inputs will automatically generate an identification number and a personal dashboard on a centralized server. Individual codes will be also given to each patient for accessing their personal dashboard on the server from a home computer. The patient will then be randomized, with stratification on center, sex, and absence or presence of a daily consumption of cannabis, between the intervention and the control groups. The psychologist will then perform a brief therapeutic intervention for both groups. Investigators plan to train all psychologists all together to the brief intervention. Then a smartphone application will be installed on the patient's smartphone. Follow-up assessments will be conducted 6 and 12 months after baseline using the same questionnaire, through the smartphone application or on the server website. The application will recall the patient by the means of automatic notifications at 6 and 12 months. Data will be push to the server with the identification number, without any other nominal information. In case patients do not perform the evaluation one week after the expected date, they will be contacted by any means (telephone, postal mail, email or SMS with a link to the software) by a research assistant to recall them to do the evaluation. Participants will be compensated using gift vouchers for the time lost for the interview.
Experimental group :
A personalized normative feedback using a tablet application will be performed after the BTI at ED. The application installed on the patient's smartphone will automatically repeat the PNF, using a local algorithm, once a month over a 6-months period after discharge, and once every two months in the following 6-month period. It will be also possible to perform the PNF on the server website.
Control group :
Patients in the control group will receive the BTI at the ED. The application installed on this group will only realize the evaluation questionnaire.
